Adding attachment for type-writing machines.



Patented Mar. 25, I902.

A. HUGH. ADDING ATTACHMENT FOR TYPE WRITING MACHINES.

(Application filed Oct. 15, 1900.)

5 Sheets-Shoat I.

(No Model.)

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Patented Mar- .25, I902.

No. 696,l4l.

A. HUGH. ADDING ATTACHMENT FOR TYPE WRITING MACHINES.

" ed t 5 Sheets-Shaet 2.

(No Model.)

No. 696,!4I. Patantod Mar. 25, I902.

A. HOCH. ADDING ATTACHMENT FOR TYPE WRITING IIIAcIImEs.

(Application filed Oct. 15, 1900.\

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(No Model.)

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No. 696,|4l. Patented Mar. 25, I902.

A. HOCII.

ADDING ATTACHMENT FOR TYPE WRITING IIACIIINES.

(Lpplicltion filed Oct. 15, 1900.)

5 Shanta-Shut 4.

(No Model.)

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"Patented Mar. 25 I802.

A. HOCH. ADDING ATTACHMENT FOR TYPE WRITING MACHINES.

(Application filed Oct. 15, 1900.) I

5 Shoots-Shoot 5.

(No Model.)

UNITED STATES PATENT OFFICE.

ADAM EDGE, OF ALAMEDA, CALIFORNIA, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO IVENDLING-IIOCI'I ADDING MACHINE COM- PANY, OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF CALL FORNIA.

ADDING ATTACHMENT FOR TYPE-WRITING MACHINES.

SPECIFICATION forming part of Letters Patent No. 696,141, dated March 25, 1902.

Application filed October 15, 1900. Serial No. 33,054.

To all whom it may concern.-

Be it known that I, ADAM IIOCH, a citizen of the United States, residing at Alameda, in the county of Alameda and State of California, have invented a new and useful Adding-Machine which may be used as an Attachment for a TypelVriting Machine, of which the following is a specification.

This invention relates to an adding-machine; and it consists, broadly, of a series of adding-wheels, a selector carrying movable pins or contacts, keys to adjust the pins, and means for moving the selector about the axis of the wheels to actuate the latter.

In this application I have illustrated'and described the adding-machine as an attachment to a type-writing machine, and in this connection an important feature is that all the movements necessary to operate the adding-machine are transmitted from the numeral-keys of the type-writer and from the traveling movement of the type-writer carriage. When so used as an attachment to a typewriter, Iprovide mechanism controlling the carriage and the keys in such manner that the full stroke of a numeral-key and a complete return throw or movement of the carriage must in eachcase be madein order to ac tuate the adding device, thus insuring perfect operation and accurate results at all times.

The invention as herein described and illus trated will disclose a complete operative device; but it is evident that many changes might be made in the mechanisms for imparting the necessary movements to the adding device, and hence while those illustrated and described are such as I deem at present well suited for the purpose I do not intend thereby to limit my invention to such mechanisms. It will also be evident that some of the fea tures illustrated and described herein are not dependent for their operation upon the other specific features illustrated and described and may be used separately in other connections.

In the accompanying drawings, Figure 1 represents in side elevation the base and frame and part of the key mechanism of an Oliver typerwriting machine with my adding device at the rear end of the machine con- (No model-l nected with the numeral-keys and with the type-writer carriage to be operated therefrom. These parts of the type-writer that are not connected with and do not act directly upon the adding device are omitted. Fig. 2 is a plan or top view of Fig. 1. Fig. 3 is a side elevation of the adding device separated from the type-writing machine, the side plate of the adding device being removed to show the interior mechanism. Fig. 4 is a front elevation taken from the left-hand side of Fig. 8. Fig. 5 is a front view of the spring-reel and take-up of the mechanism through which the adding device isactuated from the movements of the type-writer carriage. Fig. 6 is a vertical cross-section taken on the line 6 6, Fig. 5. Fig. 7 is a detail view of the two parts of the spring-reel and take-up separated from each other. Fig. 8 is aplan or top view,on an enlarged scale, of the adding device and the connecting mechanism between the numeralkeys and the adding device. Fig. 9 is a side view of the adding-wheels, selecting device, and connecting mechanism through which the selecting device is actuated from the numerall'zeys ofthe type-writer. Fig. 10 is a top View in detail of two adding-wheels and the mechanism that operates one wheel from the movements of the adjacent wheel of the next lowest numerical order, the two wheels being separated from each other to show one of the oscillating quadrants of the setting mechanism. Fig. 11 is a side view of the selecting device removed from the frame. Fig. 12 isa top plan of the oscillating frame and the selecting device, together with parts of the stationary frame and the mechanism connecting the oscillating frame with the type-writer.

Fig. 13 is a top plan of the mechanism on the type-writer that actuates the oscillating frame and moves the selecting device in that frame from the operation of the type-writer carriage and that part of the mechanism that is mounted on the frame of the adding attachment. Fig. 14.- is an elevation of the spring-drum of the type-writer carriage and the reel of the actuating mechanism shown in Fig. 12, together with the connecting and disconnecting means. Figs. 15, i0, and 17 are details in elevation, perspective, and cross-section of the key-locking mechanism, Fig. being a side elevation, Fig. 16 a perspective view of the key-levers andtheir locking mechanism, and Fig. 17 a vertical cross-section through Fig. '14. l

I will first describe the mechanism of the adding device with'reference to Figs. 1 to 11,

" inclusive as an attachment to a type-writing 1ng my invention so far as it relates to the adding-machine as useful only as an attachment to a type-writing machine, as such part of my invention may be used in other connections.

A A are adding-wheels mounted loosely for independent'rotation on a common shaft b in a frame B and having rims with angular ratchet-teeth faces a,on which are marked the numerals from 0 to 9,'inclusive. As shown, these numerals are repeated in series five times on the periphery to carry the same entirely around the circumference and as many wheels are placed side by'side on the shaft 1) as are required to carry the adding operation to the desired order or place of numbers.

In the attachment herein illustrated the third wheel is a blank, placed to fill the space separating the cents-column from the dollarcolumn; but as it performs no work or function other than to separate the two addingwheels before mentioned it may be omitted.

D is a quadrant-shaped plate mounted on the shaft 7) to turn loosely thereon between the wheels A and carrying on the upper end D a pawl d, which is pivptally attached at the upper end to the arm D of the quadrant to rest on the notched rim of the wheel, against which it is'held 'by a spring d At the opposite angle of the quadrant a toe D projects beyond the rim of the wheel A and is turned also at right angles to stand across the rim,

.but clear of the notches'thereof. One of these quadrants is placed to act on 'each adding-' wheel, which it engages. in the downward movement to turn the wheel a greater or less distance on the shaft, and thus set the wheel to expose or show agiven number at the top over the axle, according to the length of stroke given to the'quadrant. On the return or upward movement the quadrant leaves the wheel at rest, and the ratchets (1 will then slip over the notched face without moving thewheel.

These quadrants acting directly on the add ing-whe'els are themselves moved and controlled by that part of the mechanism herein termed the selecting device, consisting of 1 a set of curved bars G equal in number to the quadrants and carrying a" number of pins H,

pointed ends when projected beyond the inv ner edge of the curved bar G stand in line with the too D of the quadrant, by contact with which part they connect the selecting device G H with the quadrant, and thereby cause the former part to carry the latter downward in the arc of a circle. The pins H straddle the curved bars G, and as they are of spring metal there is sufiicient friction to hold them in posit-ion on thebars unless they are positively moved.

The parts H, herein termed the pushpins, correspond in number on each bar G with the nine numeral-keys of the type-writer. They are spaced uniformly at equal distances apart on the curved bar, and the whole number carried by the bars comprising the selecting device arealined horizontally,so that those pins which have the same position numerically in the several rows stand on the same horizontal line across the bars. The function of these pins is to engage the quadrants and cause those parts that move the adding-wheels to be turned on the center I) by the movement of the selecting device on the same center, and according to the position of the particular pin that may be pushed in from the front and caused to project at the inner edge of the curved bar the selector GH will turn the quadrant, and consequently the addingwheel to which it belongs, a predetermined distance, the extent of which is regulated to bring into position at the top of the wheel that numeral which corresponds -to the numerical position of the projected pin in the row on the curved bar. The heads 72 of the push-pins project beyond the front edge of the bar G when the beveled points are flush with the inner edge and stand clear of the quadrants, and they are pressed into prop= erly project the points by striking the heads.

.The parts GH, constituting the selecting device,are mounted in the oscillating frame,composed of two quadrant-shaped plates E E, connected together by tie-rods e e and journaled on the stationary shaft 17 to swing in a circular-path from the front downward and under the adding-wheels,by which the movement selectingdevice previously engaged with the setting-quadrants D carries the latter around in engagement with the adding-wheels and thus operates the wheels. This oscillating frame E is operated through the medium of mechanism hereinafter described and attached to the end of an arm or extension E of the plates E1 The curved bars G are all connected at their ends to sleeves g g, which are slidably supported upon the tie-rods e e, and the bars may thus be moved all together both transversely of the adding-wheels and also about'the axis of the wheels, as will be more fully described hereinafter. In this op eration of setting thepins the position of the parts is illustrated in Fig. 9. The part G H has a uniform length of stroke or movement around the adding-wheels, but the extent to which the part acts on the quadrant is determined by the particular pin selected and pushed in, and consequently if the first or top pin be pushed in the quadrant engaged by the pin will be moved and caused to turn the wheel only to the extent of one notch, or if the ninth or lowest pin be pressed in the quadrant will turn the wheel the distance of nine notches or numbers.

The means for setting in the pins II consist of bars 1, herein termed the fingers, fulcrumed on a common stationary shaft or rod K to vibrate in a vertical arc and having upwardly-curved members that terminate in tappets i, the members being bent or offset laterally to bring all the tappets in the same vertical line, one beneath the other, so as to stand in line with and alsoin close relation to the row of nine pins on the same bar G of the selecting device. The fingers correspond in number with the numeral-keys of the typewriter to which they are severally connected by lever-arm L, each fulcrumed on a common center L and attached at one end to a key-lever L and at the other end connected with the finger by a loose joint.

Vhen the attachment is applied to an Oliver type-writer, in which the key-levers are arranged in two separate groups, as shown in Figs. 2, 4c, and 8, the key-levers L of the numeral-keys are distributed between the two groups in such manner as to necessitate the use of angularly-bent connecting-levers. In the case of other styles of type-writing inachines, however, where the arrangement of the key-levers will permit,the tappets should be formed directly on or secured to the ends of the key-levers, which should be extended rearwardly from the fulcrum-point. In that arrangement the curved fingers I are dispensed with and the selecting device is set tov occupy a working position beneath instead of in front of the set of adding-wheels, as shown in Fig. 9, where the rearward extensions of the key-levers and the proper position of the selecting device to be acted on by such tappets are indicated by dotted and broken lines. In that construction it should be noticed that the tappet-carrying extensions of the several key-levers must be of varying lengths in order to bring the separate tappets in alinement with their respective push-pins in the row on the same bar of the selecting device.

In the construction illustrated in Fig. 9 the lever-arm L is attached to the key-leverbya downwardly-extending foot divided into two members on m, one of which is bent at right angles at the end to rest on the top edge of the key-lever and the other similarly bent to extend under and lie against the bottom edge, thereby attaching the two parts stitlly together without the use of pins, screws, or rivets and allowing the levers to be readily '9 sprung apart and detached without disconnecting the parts of the type-writing mechanism.

Through the medium of the tappetfingers above described the numeral-keys of the machine act on the push-pins of'the selecting device to set them in the required order and position to engage and move the quadrants, and in that operation it should be noticed that the nine tappet-fingers stand on the same line, so that each one stands directly in front of or opposite to one of the gangs of pushpins on the selecting device, and consequently the selecting device must be shifted laterally from right to left by a successive movement in order to bring each set of push-pins into operative position to be acted on by the tappets. The first position of the selecting device at the beginning is at the extreme right of the adding-wheels clear of the quadrants and with the tappets standing in line in front of the first segment-bar hot the selecting device G H, (illustrated in-Fig. 9,) and from that position the part G H is fed sidewise step by step following the successive strokes of the keys to bring the different rows of pins into line with the tappets. This step-by-step movement of the part G H is produced from the spacing movement of the type-writer carriage following the stroke of each numeral-key through the instru mentality of an arm N,iixed to the carriage P, and a pivotally-attached rod R, connected at the outer end to the part G H and movable freely in a horizontal are from right to left and back again with the pivotal point B for its center of motion. This point B is formed of a stud rotatable in a socket in the top end of the post R and having an eye in which the rod R is loosely fitted, so that the part B will slide on the red as the type-writer carriage is shifted by means of the shifting-key either forward or backward to change the writing from letters to figures, or vice versa.

In machines of the shifting-carriage type, such as the Oliver type-writer before mentioned, where the same type-bars carry both letters and numerals, the change required to be made to write numerals where letters were previously written is effected by shifting a frame on which the roller-carrying frame, commonlycalled the carriage, runs a sulficient distance to bring the line of impingement of the type on the roller in proper position to receive the impression from the numeral and not from the letter on the typebar, and this adjustment or shifting movement of the carriage is produced through the medium of a finger-key and connect-ions. It is on this frame that supports the carriage the post R is mounted. The post R thus has a movement toward and away from the keys, but no movement transversely of keys. These parts last mentioned form part of the mechanism in the type-writing machine, and a detailed description of such shifting means is not considered essential to a clear under- .take place.

standing of this invention and of the manner of applying the sameto-ashifting-carriage machine. In making such connectionwith an Oliver type-writer of the type mentioned it is found necessary to so attach. the rod R .point B is mounted on the movable frame of .the' typewriter previously described, and therefore it must follow the movements of the carriage as it is shifted-forward or backward. Through such shifting movement of the carriage also the arm N is thrown into or out of .working relation with the rod by forming on .the latter part a depressed portion R lying below the plane in whichthe projecting end of the arm travels, and also the portion R, lying in the same plane with thatarm, so that the arm will strike and'carry the rod'R along with it when the arm is in line with the elevated portion, but will clear the rod without moving it when in line with the depressed portion. Therefore when the machine is adjusted to write numerals, with the carriage occupying the extreme forward position on its bed, the end of the arm Nlies in the same plane with the rod R and'will come in contact with the rod in the movement of the carriage from right to left; but inthe otherposition of the carriage-whenthe letters are to be written there will be no contact between .the arm N and the rod B, because the former will stand in line with the depression R in the rod and no movement of the latter will The outer end of the rod R is loosely attached to aslidable' sleeve R carried by a stationary rod R? on the frame, and this'sleeve in turn is connectedto the selecting device by a forked arm 1"", standing upwardly from the sleeve and fitting on the extreme left-hand bar it of the part G H. This connection allows the part G H to swing in an are on the center b, without becoming separated from the sleeve, while the latter, sliding horizontally on the rod R under the movements of the swinging rod, carries the part G H from side to side with it, because the forked arm embraces the curved bar It.

This bar h at the left side of the selecting device difters from the others in having no push- .pins,- as its function is simply to connect the H- is moved step by step during the setting operation of the several sets of push-pins until it is brought into position at the left and in line with the adding-wheels.

Until the part G H arrives at that position no oscillation or rotative movement'ot' the part G H- takes place; but when set properly inv line with the adding-wheels. the frame E is moved around under the adding-wheels, carrying the projected push pins into engagement w1th the several quadrants and through those parts acting on the adding-wheels.

In the operation of writing and adding several rows of numbers the first step performed is the adjustment of the proper push-pins on the selecting device to act on thequadrants of the adding-wheels in required order, and

a description of the setting operation preparatoryto adding a line of numbers after .they are written by. the ,machine will illustrate the general operation ofthe adding mechmachine, as that number of spaces is reserved on the right-hand end of the-line in the present construction'for the five columns of figures that the attachment isadapted to add, and whether the machine be adjusted to write letters or'letters and figures together on the same line and not in column or tabulated work the line of writing is always arrested at such seventh space or before the seventh space from the right-hand end is reached. If arrested before, the carriage will be moved to the proper position by the spacing-key, and

.the arm N will then be in engagement with the rod R, but the first row of push-pins will not be in line with the tappets. must therefore be moved one space to the left, and such movement will cause the arm N and rod R to move the selector-carrier one space and bring the first row of push-pins in line with the tappets, and the machine is then ready to print and register the number. Key

5 then beingdepressed by the operator, that numeral is printed on the paper and the ,tappet connected with that key strikesthe head of the fifth pin in the first bar G of the selecting device, causing the beveled point of the pin to be projected from the inner side-of its carrying-bar G. -VVhen key 5 is released after that operation, the carriage moving one space to the left sets the selecting device laterally in the same direction by the action of the arm N on the rod R, whereby the set of pins on the second barrG of the selecting device is brought in line with the tappet-fingers. Then the numeral-key 6 is struck, and similar movements of the type-bar to print numeral 6 and at the same time set the sixth pin in the second set are produced. Then the remaining numeral-keys are'struck in succession to print the figures 3, 1, 4, the spacing-key of the machine being operated between the numeral-keys 3 and l to separate the dollars and cents. At the end of The carriage IIO this operation after the last figure is written the carriage will stand at the left end of the line, with the selecting device in front of the adding-wheels ready to act on the quadrants D as the carriage is drawn back to the starting-point. By such movement of the carriage from left to right the oscillating frame E is moved on the center I), bringing the projected pins into engagement with the quadrants D and carrying those parts around with the frame. The parts D, through their pawls tl,carry the adding-wheels around with them, the position of the projected pin in each row determining the extent of movement of the wheel, and thus while the selecting device always traverses an arc of the same length the length of movement of each adding-wheel is governed by the distance of the projected pin above the toe of the quadrant as the selecting device begins to move on its center. The mechanism giving such motion to the frame E from the movement of the type-writer carriage after the push-pins of the several bars G have been set is illustrated in Figs. 2, 3, 5, U, 7, 12, 13, and 11-. A disk S and a sheave T, loosely mounted on a common center S are detachably coupled together by a pawl S", pivoted on the sheave, and stop-pins i If, fixed in a circular hub S on the disk S, extending between the latter and the sheave. A spring S engages the pawl and normally holds the inner end of the pawl down on the hub of the disk and the outer end out beyond the periphery of the sheave, so that it may be brought into engage ment with a fixed stud U, standing out from the side plate of the frame B and perpendicularlynpward between the disk and the sheave. The outer end portion of the pawl is bent and will ride over the end of the stud U, and while moving over the stud the inner end of the pawl will be elevated and permit the pin '4 to pass under it. From the sheave a cord T is carried out over a pulley T on the shaft L and at right angles over a horizontal pulley T on the machine to a reel V, to which it is fastened, the other end of the cord being secured to the sheave T. The reel V is connected with or attached by a clutch to the spring-drum W, that forms part of the feeding mechanism of the machine-carriage, and through the medium of the cord T connecting one with the other, the rotation of the reel in one direction winding up the cord rotates the sheave T and when rotating in the opposite direction allows the sheave to reverse its motion and rewind the cord upon it. These two motions in different directions are produced by connecting the reel V to the spring-drum \V in the movement of the carriage from left to right after a line of figures has been written and when the carriage is being drawn back to the starting-point and afterward disconnecting the reel V from the drum W at the end of the return movement of the carriage, at

produced by a spring T in a recess in the sheave, the spring being attached at one end to the sheave and at the outer end 15 to a fixed point on the frame. As often as the cord T is drawn off the sheave T the rotation in that direction carries around the disk S with it, because the pawl S and pin '6 look the two parts together at such time, and this motion continues until the outer curved end of the pawl engages with the fixed trip U and disengages the inner end from the pin t, when the two parts S T are detached and the disk S remains at rest, while the sheave T continues turning in the same direction by the continued movement of the type-writer carriage. The extent of this first movement of the disk is a half-revolution. The sheave continues its movement alone until the inner end of the pawl S engages the pin t, and the disk S will then again move with the sheave T and complete another half-revolution. It will therefore be apparent that there is a pause in the movement of the disk while the-pawl is carried from the pin t to the pin t, and the necessity for this pause will be referred to hereinafter. Duringthefirsthalf-revolution of the disk S the selecting device is moved downward from the front side under the adding-wheels and the projected pins II will. engage their respective quadrants, and so operate the adding-wheels to add the number set up. The movement of the disk is transmitted to the selecting device by a link S,

pivoted at its lower end on a crank-pin S, secu red to the disk Snear its edge, and pivotally connected at its upper end to one of the arms E of the frame carrying the selecting device. he returned to its upper or normal position it is necessary to move to the right to clear the adding-wheels, and this lateral movement is effected during the pause in the movement of the disk while pawl S is moving from the no pin t to the pin 75. This lateral shifting movement is produced by connecting the slide R, by means of a cord Bl, with a swinging arm 23, that is suspended from the centerb and having its lower end lying in the path of a project- :15

ing half-rim T on the sheave T, the parts being so adjusted that as the shoulder at the cutaway part of the rim T strikes the free end of the arm 23 that part is carried backward by the sheave and the part lit is drawn over to the right side of the main frame, thereby carrying over to that side the selecting device G H. lhis lateral movement of the selecting device on the oscillating frame takes place, as

before stated, before the frame is returned Before the selecting device can 05 Then in the return upward move- 13o stationary bar or rod having one end fixed in the right-hand side plate 13 of the stationary frame and standing horizontally across the space between the side plate and the addingwheels. The position of the rod P is shown in Fig. 3 of the drawings, in which the side plate before mentioned is removed and the rod is shown in cross-section. It is also shown in Fig. 11 in relation to the side plates of the oscillating frame F,where it extends through a curved slot provided in the quadrantshaped sides. I

It is necessary to provide some means to hold the disk S stationary both in its normalposition and also after ithas made the first half-revolution and the pawl 8 is moving from the pin to the pint. This maybe accomplished in various ways, and a simple deing unless the pawl S is engaged with one of I the pins t '6, and it is obvious thatin the return rotative movement of the sheave the inner end of the pawl S will ride over the pins without actuating the disk. From this mechanism, actuated by the return throw of the type-writer carriage, the three motions of the selecting device are produced in the following order: The carriage being drawn from left to right by the operator after the operation of setting out the push-pins is finished, the disk S is rotated by the sheave T onehalf a revolution in the direction of the arrow, Fig. 3, thereby moving the selecting device from the front to the position under neath the adding-wheels. The extent of this movement is sufficient to rotate the wheels the proper distance to bring the required numbers into line with the sight -aperture above. At the end of such half-revolution the pawl that locks the two parts S T together is brought against the fixed stop U, when the pawl being raised clear of the pin 25 allows the part T to run forward until the pawl engages the pin If, during which time the disk S is held at rest by the brake 2 3, while the part T continues its rotation to bring the pawl against the. pin if and again lock the two parts S T together. In this run the disk T engaging the end of the arm 23, moves that part backward, and through the connection made between the arm and the slide R by the cord, 24 the selecting device Gr is drawn sidewise in the frame E and clear of the adding-wheels. As the disk T then takes up the disk S by its pawl engaging the pin t, the following-half revolution of the disk S takes place and the part G H is brought upward to the front again in position to the right .ofothe addingwheels readyfor the nextsetting operation. In the upward movement of the frame E, that carries the part GH, the quadrants D are brought back to position by a rod or cross-bar E that extends from one side plate to the other of the frame E, and by coming incontact with the projecting top ends D of the quadrants sets them all back as the frame is brought to place at the front. In this manner the selecting device is actuated by the return movement of the carriage aftertheline of figures has been written, and the parts are in position when the carriagearrives at the end of the run from left to right. At that moment the reel V, on which the cord T has .previously been wound, is disconnected from the spring-drum W on the machine,and the spring T, then acting on the sheave T, rewinds' the cord on the sheave T.

Provision is made also for operat-ively connecting the mechanism of the typewriter with and disconnecting it from the selecting device by means of a throw-off mechanism, whereby the adding device will be operated by the return movement of the carriage only after the carriage has reached the extreme end of its spacing movement at the left side of the machine and is ready to be drawn in the opposite direction to the starting-point to write another line.

In all other movements of the carriage under the action of the printing-keys and the spacing-key of the machine the adding mechanism is inoperative, it being so disconnected that the motive power obtained from the movements of the carriage does not act on the mechanism and the selecting device remains at rest. This throw-off mechanism consists of the take-up reel V, loosely mounted to rotate under the drum or spring-barrel W, belonging to the type-writer mechanism, and on which the chain or band W of the carriagefeed is wound and unwound in the reciprocations of the carriage in the. well-known manner. Connection between the reel V and the drum is made by. a clutch composed of a pivoted dog V on the reel and a notch in the adjacent face of the drum W, with which the end of the dog is set to engage when the reel is moving in one direction. These parts are arranged to lock the reel to the drum as soon as the carriage reaches the extreme left and the reel'is carriedaround by the drum, drawing the cord T from the sheave Tas the typewriter carriage travels from left to right and as long as the reel and drum are locked together. When the carriage reaches the end of its travel at the extreme right, however, the reel is disconnected from the drum and the cord T being released at the reel is then taken up and rewound by the sheave T. Thus the parts are reset preparatory to the next writingand spacing movements of the type-writer.

The dog V is thrownoff to disconnect the reel V from the drum at the proper time by a fixed stop V on the machine, which is set to stand in the path of the free end of the dog V.

When the carriage has reached the limit of its travel from right to left, the notch in the barrel comes into position to take the pawl V, and the reel V being again locked to the drum the cord T is drawn off the reel T as the operator draws the carriage back from left to right. The spring-barrel XV and take-up reel V make one complete revolution as the carriage makes a complete travel from left to right, and the sheave T makes a complete revolution and a fraction of another revolution, such fraction depending upon the distance between the pins 25 and t, and the several parts are so proportioned and the cord T of such a length that the latter will always be kept taut, and the reel V will take up as much of the cord in one complete revolution as the sheave will give off in its one complete revolution and the fractional part of another, and vice versa.

The object of connecting and disconnecting the parts as above described is to keep the adding mechanism inoperative until the carriage reaches that point in its travel from right to left where it enters the reserved space at the right end of the line, so that when the machine is adjusted to write letters or numerals not in columns to be added the carriage will not enter the reserved space at the right end of the line. The means to prevent the line of written matter from entering upon this reserved space consists of a stop 25 on the carriage set to engage the end of the rod R that extendsbeyond the post and in the path of the stop, as illustrated in Fig. 13. If it be desired to write only letters or letters and figures not in the columns, the carriage will be returned when the stop 25 engages the rod R. In setting the machines to print figures, however, the carriage will, as before stated, he moved forward toward the keys, and such movement will permit the stop to pass by the end of the rod R. In addition to this controlling means, whereby the carriage is compelled to make a full run from end to end of its travel before it will connect with the adding mechanism on arriving at the end or will be disconnected from it on arriving at the opposite end, the carriage is checked or controlled and a retrograde movement at any point in the length of run from left to right in the space reserved for figures after entering the space reserved for figures is prevented from making a retrograde movement out of such space before it has completed its run from right to left by a controlling means consisting of ratchet-teeth 26 on the rim of the drum XV, a pivoted pawl 27, adapted to engage the teeth 26, and stop-pins 28 29 on the top face of the drum. There is a finger SO projecting over the drum XV in position to be engaged by the pin 28, but not by the pin 29. Another finger 3O projects oppositely from the finger 30 and engages one or the other of two notches in a spring catch 50, and this spring-catch will detachably hold the pawl 27 in one or the other of the positions indicated by full and dotted riage has made a complete run from right to left for the purpose of printing a line, including the reserved space for columns of figu res, the controlling mechanism will be in the position indicated by full lines in Fig. 13. On the return movement of the carriage from left to right the drum \V will turn in the direction of the arrow 3 and the rope T will be wound upon the drum V to effect the downand-up movement of the selecting device, as before described. When this return movement is completed, the pin 28 will haveengaged the finger 30 and rocked the pawl 27 and dog 31 to the position indicated by dot-ted lines. The drum W is then free to move in the direction of the arrow il and this movement will take place when the carriage moves from right to left. As before stated, the pin 28 is short enough to pass under dog 31, so

the latter will not interfere with the pin 28' when moving in the direction of the arrow In this movement the pin 29 leads, and as the finger 30 is out of its path of movement this pin will pass the linger SO and also the dog 3] because the latter and the spring-catch 50 will yield sufficiently for this purpose without disengaging the finger 30 from the notch in the spring-catch 50. The parts are so arranged that the pin 29 will pass the end of the dog just. as the type-writer carriage is in position to impart the first movement to the selecting device, and after the pin 29 has once passed the end of the dog it will by its engagement with the end of the dog 31 prevent the carriage from moving from right to left. It is therefore necessary to complete a full run of the carriage from right to left before the dog 31 can be again moved out of the path of the pin 29, as this cannot be effected untilthepin28strilcesthefinger30. Bymeans of this stop mechanism, therefore, the run of the type-writer carriage is controlled and is limited to an extent of movement necessary to actuate the adding mechanism in the proper manner to produce accurate operation and also render the same independent of the opera tor so far as adjustment of the carriage and adding mechanism is concerned. This mechanism is not operative when the machine is being used to write letters only and does not come into operation until after the stop 25 passes the rod R. Until the rod R is passed the pawl 27 and dog 31 occupy the positions shown in dotted lines in Fig. 13 and the carriage is free to move in either direction in the usual manner. Of course when the machineis used to write up to the reserved space only the drum WV does not make complete revolution in either direction. As a further means of securing such desired independent and accurate action I provide a key-controlling mech- ICO anism for the number-printin g keys, whereby each key must be given its proper length of stroke, and also when a key is depressed to write its figure or character it must make its full stroke before itcan rise, and no other key can be actuated until that stroke is completed. This key-controlling means (illustrated in Figs. 15, 16, and 17) consists of a segmentplate 32 to each key-lever having a hook 33,

set in working relation to a fixed pin 34 on the side of the key-lever L, and a roller-stud 35 on the'side set to work against an incline '36 on the lower side of the key-lever, the segments being secured on a common rock-shaft 41, having hearings provided for it in the frame of the machine and extending under the key-levers. All the segments 32 are the same, except for one key, and on that one is a stop-block 37, setting out from one side and engaging'a pin 38 on the free end of a swinging arm 39, pivotally attached at the opposite end to a fixed point on the machine. This arm is held in working contact with the outer notched edge of the block 37 by a spring 42 and is caused to traverse the rounded back or inner edge of the block by a switch-piece the block and the spring'43, so that the downstroke of the key must be completed before thelever can rise. The movement of one keylever acting on all the segments at the same time, as wellas on its own segment,throws the hooks 33 of the remaining segments under the pins 34 of the levers; but the pin of the depressed lever, on the contrary, passes under the hook of its segment and moves in the curved recess beneath, so'that the segment isnot locked and the key-lever can move. No key of the set can be depressed until a previously-operated key has made a full stroke,

and the proper operation of the addingmechanism which is dependent on the movement of the numeral-keys is thereby insured.

The adding mechanism proper in this attachment consists of the selecting device G H, the quadrants D, that are acted on by the selecting device, the adding-wheels, that are turned by the quadrants, and the mechanism' by which every movement of one wheel ten notches or numbers moves the wheel of the next highest order one notch or number. The parts of this last-mentionedmechanism that remain to be described are shown in Figs. 8, 9, and 10. 6 is a spring-held pawl bearing on the notched rim of each Wheel to prevent it from turning backward, and 7 is an arm loosely mounted on a stationary shaft 8 and having a curved depending member-9 extending below the shaft. 10 is a dog piv-' with stop-pins 13, projecting from the side of the wheel A, and the dog being pivotally attached to the side of the same arm stands directly in line with the rim of the next wheel,

with the hook setting up closely to the notched rim and between two notches, as illustrated in Fig. 5. This is the normal position of the arm and the dog when the parts are at rest. The relative position of these parts is represented also in Fig. 10, in'which the two adding-wheels it brought to working position will set the dog 10 in working contact with the notched rim of the wheel nearest to it. 14 is a latch loosely mounted on a rod 15 and having a recess and a curved finger 16 to engage a pin 17 in the side of the arm 7, and 18 is a spring bearing against the hooked dog to hold it to the notched rim of the wheel when the arm is thrown up. 19 isaspring-trigger having a curved recess engaging a stud 22 on the side of the curved member 9 and having also a straight incline 21, extending from the recess forward. This part is held upto the stud by a spring of sufficient power to throw the curved arm forward when the stud is set out of the recess and allowed to ride against the incline, the upper tension of the spring atsuch' time acting to draw up the outer end of the incline and press the curved arm forward.

.As thus constructed the operation of these parts is as follows: In the rotation of the first or units adding-wheel on the right-hand side ofthe series one of the stop-pins 13 is brought against the arm 7 when the wheel has moved ten notches, thereby raising that part and bringing the hooked end of its dog 10 in line with the notch in the rim of the wheel of the next highest order to the left. This movement of the arm 7 sets its hooked dog for action, but does not give the proper extent of vertical movement to the dog to turn the wheel, because the upward movement of the arm is limited by the latch 14, which engages the pin 17, and the arm can rise only high enough to let the pin 13 pass by. The final movement of the arm 7 to move the Wheel is effected by the incline 21 of the spring-trigger 19, already described; but those parts are inoperative as long as the studs 22 lie in the recesses 20 at the higher-end of the inclines. The release of the studs from the recesses allows the triggers to act on the arms 9, throwing them forward and'drawing up thedogs that engage the notched rims of the wheels, and this release is controlled from the oscillating frame by the arms E extending from the sides of that part and united by a rod E which in the first position of the frame when atrest in front of the wheels extends across the ends of all the curved extensions 9 and prevents these parts from being thrown forward by the trigger until the oscillating frame IIO has completed its full extent of movement to set the adding-wheels ready for adding. In that movement the rod E is carried clear of the ends of the curved members 9 and upward to the position indicated by dotted lines in Fig. 9, and the arms 7 are then set upward by the action of the inclines 21. This motion cannot take place until the latch la is thrown off by the rod E striking the curved finger 16 of the latch. Thus the final motion of the dog 10 to transfer the movement from one wheel to the next highest is effected at the end of the setting operation and after the wheels have been set by the pins II of the selecting device and are at rest. At the end of its movement around the axis, whereby the adding-wheels are acted on by the selecting device, it will be seen that the oscillating frame performs the operation of releasing the arms 7 from the latch and allowing the inclines 21 to throw the curved extensions 9 forward, and thereby move the hooked dogs 10. By this means the rotation of one wheel acting on the next highest wheel to set it forward one notch or number for every ten notches of the lower wheel is performed after the setting operation and when all the setting mechanism is at rest. The curved arms or members 9 also perform the function of resetting the parts to position and compressing the springs of the triggers after the adding operation. The arms E of the oscillating frame in returning to the lowest position bring the cross-rod E against the curved inner sides of the members 9 and force those parts back until the studs 22 catch into the recesses at the top of the inclines. The re turn movement of the oscillating frame thus resets the parts of the accumulating device ready for the next operation to add the next line of numbers. By the same return movement of the frame E the pins H are restored to position and the selecting device is set to its starting-point at the right-hand side of the oscillating frame. The first of these reset ting movements is performed by the rod P, before described, and the selecting device is shifted sidewise to the right of the addingwheel by the swinging arm 23. This arrangement and operation of these parts will be understood from Figs. 3, a, 8, and 9 of the drawmgs.

Having described the invention, I claim 1. In an adding-machine, adding devices, a selector carrying pins, keys to adjust the pins to position to engage the adding devices, and means for moving the selector to actuate the devices, substantially as set forth.

2. In an adding-machine, adding devices, a selector carrying pins, keys supported by a stationary keyboard to adjust the pins to position to engage the adding devices, and means for moving the selector to actuate the devices, substantially as set forth.

In an adding-machine, adding devices, aselector carrying pins, keys to adjust the pins to position to engage the adding devices,

and means for moving the selector laterally and'longitudinally to actuate the devices, substantially as set forth.

4. In an adding-machine, adding-wheels, a selector carrying pins and movable about the axis of the adding-wheels, and keys to adjust the pins, substantially as set forth.

5. In an adding-machine, adding-wheels, a selector carrying pins and movable about the axis of the adding wheels, and keys supported by a stationary keyboard, to adjust the pins, substantially as set forth.

6. In an adding-machine, adding-wheels, a selector carrying pins and movable transversely of the wheels and also about the axis thereof, keys to adjust the pins and move the selector transversely of the wheels, and means for moving the selector about the axis of the wheels, substantially as set forth.

7. In an adding-machine, adding-wheels, a selector carrying a series of pins to each wheel axially about the wheels, a series of keys and means whereby each key may be brought into operative connection with pins of all the series, and means for moving the selector about the axis of the wheels, substantially as set forth.

8. In an adding-machine, the combination of a series of rotative adding-wheels, a carrier movable axially about the wheels, series of pins supported by the carrier, keys for setting the pins in position to operate the adding-wheels, means for changing the position of the pins and adding-wheels laterally with respect to each other, and means for moving the pins about the axis of the adding-wheels, substantially as set forth.

9. In an adding-machine, the combination of a series of rotative adding-wheels, a carrier movable axially about the adding=wheels, series of movable pins supported by'the carrier, keys for setting the pins in position to operate the adding-wheels and to feed the carrier step by step transversely of the add ing-wheels, and means for moving the pins about the axis of the adding-wheels, substantially as set forth.

10. In an addingmachine, the combination of a series of rotative adding-wheels, a selector for actuating said wheels, means for moving the selector step by step transversely of the wheels, and means for first moving the selector about the axis of the wheels to actuate the latter, then transversely thereof in a direction opposite to the step-by-step movement, and finally about the axis thereof in a direction opposite to the first axial movement, substantially as set forth.

11. In an adding-machine, a series of adding devices, a selector having series of parallel rows of pins, keys for adjusting the pins to position to engage the'adding devices, means for moving the selector transversely of the adding devices, and means for moving the selector in a direction longitudinally of the rows of pins to actuate the adding devices, substantially as set forth.

ICC)

12. The combination with a type-writing machine, of an adding device, and means for operatively connecting the carriage. of the type-writer with the adding device to operate the latter from the return movement of the carriage.

13. The combination witha type-writercaring mechanism with the adding device to set the same for adding the figures as the same are written by the selected keys, and means Operatively connecting the carriage of the I type-writing mechanismwith the adding device to operate the same by thereturn movement of the carriage after the line of figures is written.

15. The combination with a type-writing machine, of an adding device and meansoperatively connecting the carriage of the typewriter with the adding device to operate the latter from the return movement of the carriage, and means for operatively disconnecting the carriage from the adding device at the end of said return movement.

16. The combination with a type-writing machine, of an adding device, means operatively connecting the carriage of the machine with the adding device at the end of the spacing movement of the carriage whereby the power to actuate the addingdevice is derived from the movement of the carriage after the line is written, means operatively disconnecting the carriagefrom the adding device at the end of said return movement, and controlling means whereby the carriage is required to complete its return movement before being disconnected.

17. The combination with a type-writing machine, of an adding device, means operatively connecting the carriage of the machine with the adding device after the carriage has arrived at the end of its travel and before it begins to return,and controlling means whereby retrograde movement of the carriage is prevented beyond a predetermined point until after the carriage has reached the end of its travel in that direction.

18. The combination with a type-writing machine, of an adding device,means an tomatically connecting the adding device with the type-writing mechanism from the adjustment of the machine to write figures in columns to be added, whereby said adding device is controlled by power derived from the movements of the'type-writer keys and actuated by the traveling movement of the type-writer carriage, and means automatically disconnecting the adding device to render the same in-' operative when the machine is adjusted to write letters.

10. The combination witha type-writing machine, of an adding device, means operatively connecting and disconnecting the machine and the adding device from the diifercut adjustments of the machine to write fig- 20. The combination, with a type-writing 7 machine, of an adding device, means operatively connecting the adding device with the numeral-keys for controlling the adding device, and controlling means'adapted to prevent a numeral-key in its downstroke from rising until it has completed its stroke.

21. The combination with a type-writing machine, of an adding device, means operatively connecting the adding device with the numeral-keys of the machine to control the same from the movement of the keys, means controlling the downstroke of a depressed key to prevent the same from rising until after it has completed its stroke, and means actuated from thedepressedkey to look all the remaining keys until the depressed key has completed its stroke. Y i

22. In an adding attachment for type-writing machines wherein the adding operation is controlled by the numeral-keys of the machine, the combination with the operatingkeys, of controlling means whereby the movement of onekey when depressed holds all the remaining keys out of action until the depressed key has been givenits full length of stroke, and releases the keys at the end of said stroke.

23. In an adding attachment for type-writing machines wherein the adding mechanism is controlled by the type-writer keys, the combination with the numeral keys, of means individually controlling, the movements ofeach key and itself controlled by the movements of any other key of the set to lock its own key when another key is depressed.

24. The combination of type-writing machines, adding mechanism, means operatively connecting the numeral-keys of the type-writ ing mechanism with the adding mechanism and adapted to set the adding mechanism by the movements of the selected keys to add the figures written by said keys, and means 'operatively connecting the; carriage of the typewriting mechanism with the adding mechatv ism to actuate the same from the return movement of the carriage after the line of figures has been written.

25. Thecombinationwithatype-writercarriage, of adding-wheels, devices to turn said wheels, connections between the carriage and said devices to position the latter relative to the wheels when the carriage moves in one direction, and connections between the carriage and said devices to move the latter to turn the wheels when the carriage moves in the opposite direction.

26. The combination with the keys and carriage of a type-writing machine, of addingwheels, a selecting device movable transversely of the wheels and about the axis thereof, mechanism controlled by the keys to effect a step-by-step movement of the selecting device transversely of thewheels in one direction, and means operated by the movement of the carriage to move the selecting device about the axis of the wheels and also transversely thereof in a direction opposite the step-by-step movement, substantially as set forth.

'27. The combination withatype-writer carriage, of adding-Wheels, and means for operatively connecting the carriage with the adding-wheels to turn the latter by the return movement of the carriage.

28. Thecombination withatype-writercarriage, of adding-wheels, a selecting device movable to actuate the adding-wheels, and means operated by the return movement of the carriage to move the selecting device to turn the wheels.

29. The combination with a type-writing machine, of adding-wheels, a selecting device, means operatively connecting the selecting device with the numeral-keys of the machine, whereby the operation of the said keys in printing lines of figures also sets the selecting device to position to actuate the addingwheels to add the same figures, and means operatively connecting the type-writer carriage with the selecting device to actuate the same from the return movement of the carriage, and means adapted to disconnect and reset the selecting device automatically at the end of the operation after each line of figures is written and added.

30. The combination of type-writing mechanism, adding-wheels of different numerical orders, a selecting device, means operatively connecting the nu meral-keys of the type-writing mechanism with the selecting device to set the same for adding the figures according to their numerical order as Written, means connecting the selecting device with the carriage of the type-writing mechanism to move the selecting device step by step from the spacing movement of the carriage in writing figures in lines to be added, and means actuating the adding-wheels by the return movement of the carriage to transfer the addition from one adding-wheel to the next in ascending order.

31. The combination of type-writing mechanism, adding-wheels of different numerical orders a selecting device rotatable around the adding-wheels, and also movable transversely with relation to said wheels, means operatively connecting the numeral-keys of the type-writing mechanism with the selecting device to set the same to engage the adding-wheels according to the numerical relation of the figures in the Written line, spacing mechanism operating to move the selecting device transversely step by step simultaneously with the spacing movement of the carriage, and means operatively connecting the carriage with the selecting device whereby the latter is rotated to engage and operate the addingqvheels from the movements of the carriage.

32. In an adding attachment for type-Writing machines, adding-wheels of the different numerical orders, a selecting device adapted to be operatively engaged with and disengaged from the adding-wheels by the movements of the typewriter carriage, means operatively connecting the numeral-keys of the type-writer with the selecting device to set the same from the movement of the carriage and the selected keys as the same are depressed in succession to write a line of figures, means for rotating the adding device after its engagement with the adding-wheels, and spring-actuated means adapted to rotate one adding-wheel one number from the movement of the wheel of the next lowest order ten numbers after the setting mechanism has operated and the parts thereof are set at rest.

83. The combination with the writing mechanism of atype-writin g machine,of a plurality of adding-wheels of the different numerical orders rotatively mounted on a common shaft, an oscillating frame movable in an are on the same shaft, around the adding-wheels, a selecting device in said frame having a transverse shifting movement therein, and comprising a plurality of bars corresponding to the different numerical orders represented by the adding-wheels, a plurality of push-pins in each bar agreeing in numerical order with the numeral-keys of the type-writer, tappetfingers corresponding in number with the numeral-keys, and means operatively connect in g each tappet-finger with its individual key, means for feeding the selecting device step by step transversely of the tappet-iingers, and means operatively connecting the selecting device and the oscillating frame with the carriage of the type-writer to set and actuate the said connected parts from the return movement of the carriage.

3a. In an adding attachment for type-writing machines, the combination with the numeral-keys and the carriage of the writing mechanism, of aplurality of adding-wheels, an oscillating frame movable on an are around the adding-wheels, a selecting device in said frame and movable transversely therein with respect to the adding-wheels, means operated IIO by the carriage to engage said selecting device with the adding-wheels and move the oscillatingframe aroundthe adding-wheels, and means controlled by the return movement of the carriage to bring back the oscillating frame to the starting-point and to'reset the selecting device in the said frame after the line of figures is written and added.

' In an adding attachment for type-writing machines, adding-wheels of different numerical orders, an oscillating frame, a selecting device movable transversely in the frame having a plurality of push-pins arranged in separate sets corresponding in number and in numerical order with the adding-wheels, a set of tappet-fingers and means operatively connecting each finger of the set with the corresponding numeral-key of the machine, and means for moving the selecting device transversely step by step after each movement of a selected key to bring the sets of pins in successive order into line with the tappet-fingers.

36. In an adding attachment for type-writing machines, the combination with an adding device and means operativel y connecting the numeral-keys and the type-writer carriage with the adding device to set and add from the movements of the type-writing mechanism the numerals composing the written line, and spring-actuated means controlled by the movements of the type-writing mechanism and operating the adding device after each return movement of the type-writer carriage to add the last line of written figures to the line or lines previously written and added.

37. The combination of adding-Wheels of the different numerical orders, a selecting device, numeral-keys, means individually connecting the numeral-keys and the selecting device to set the same from the movements of the keys to add the numerals represented by the selected keys to the respective adding wheels of like numerical order, means for bringing the selecting device after the setting operation into engagement with the addingwheels and for actuating the same,and spring- .actuated means controlled by the selecting device and adapted to rotate one addingwheel one number from the movement of ten' 38. In an adding attachment for type-writing machines the combination, with the adding device, of means operatively connecting and disconnecting'the type-writer carriage and the adding device at required points in the travel of the carriage, comprising a reel on the adding attachment, spring-drum detachably connected thereto, a reel on the typewriter frame, a cord connecting one reel with the other, means detachably connecting one reel with the adding mechanism, a clutch connecting the reel on the type-writer with the carriage-operatingmechanism, and means for connecting one reel and disconnecting the other reel at the end of the return movement of the carriage.

39. 'In an adding attachment for type-writ ing machines, the combination with addingwheels, a selecting device, and an oscillating frame in which the selecting device is mounted to slide transversely, of means detachably connecting the oscillating frame with the type-writer carriage consisting of a reel, a spring-drum, a clutch detachably connecting the disk and the reel, means connecting the oscillating frame with the disk, a cord attached to the reel and to the type-writer carriage, and adapted to wind up the springdrum by the travel of the carriage in one direction and to he wound up by the power of the spring when the carriage is returned, and means adapted to engage the disk and the drum at the end of the unwinding movement whereby the disk and the spring-reel are coupled and uncoupled to allow the reel to alternately wind and rewind the cord by the reaction of its spring and the movements of the carriage.

In testimony thatI claim the foregoing I have hereunto set my hand and seal.

ADAM noon. [1,. s]

Witnesses:

GEO. T. KNOX, EDWARD E. OSBORN. 

